Housing for sugar-mills.



W. G. HALL'.

HOUSING FOR SUGAR MILLS. APPLIOATION FILED AUG. 20, 1909.

966,199. Patented Aug.2,1910.

4SHEETS-SHEET 1.

v WITNESSES 4 1 INVENTOH C} W I Wl ilzl lm 622M? fa/Z W. G. HALL.

HOUSING FOB- SUGAR MILLS.

APPLICATION FILED Aue zo, 1909.

Patented Aug. 2, 1910.

4 SHEETS-SHEET 2.

' INVENTOR William flaw/129 flail WITNESSES YKMQA W A TTQRNEYQ W. G.HALL.

on SUGAR MILLS.

Patented Aug. 2, 1910.

I 4 SHEETS-SHEET 3.

W/ TNESSES a RMQ ATTORNEYS 3 W. G. HALL.

HOUSING FOR SUGAR MILLS.

APPLICATION FILED AUG. 20, 1909.

} 966,199, Patented Aug.2,1910.

4 SHEETSSHEET 4.

4.2 7 4X 1; 0 21. 14 8 1 2'8 Z 5/6 Z7 41 Q 41 42 29 1 M 1 3 l l I l l IY a W l. 5 W

W/TNESSESO INVENTO/i' (ARM \7 M v M21121, 62mm Hall ATTORNEYS were sinsrnrnr Faro WILLIAM canvrn HALL, or HQNOLULU, TERRITORY or HAWAII.

nonsine roRfsUeAR-MILLs.

scenes.

To all tohom it concern: 4

Be it known that I, W'ILLIAM Gnnv'rn I-lALL, a subject of the King-ofGreat Brit; am, and a resident of the city and county of Honolulu and'lerritory of Hawaii, have invented a new and Improved Housing forSugar-Mills, of which the following is a fulholear, and exactdescription.

Among the principal objects which the present invention has in view are:to provide hydraulic jacksfor imposing and equalizing the pressureon'the master roll of the sugarcane crushing rollsz' to provide amounting" for the sald jacks whereby the inequalities of wear of thebearingbra-ssesare accommodated: to provide devices whereby. the

said jacks maybe withdrawn from Opera tive positiontor repair orreplacement rap-" idly and readily: to provide'a bracing stru'c-' turefor maintaining thesa id masterroll in positlon, (the brasses' beingdisposedwith reference to receiving the maximum strain in alinecoincident with the line of the resultant expansive forces developedbetween the three rolls, and to provide means for ad gusting the bearingsaddles of the lower rolls. I I

One embodiment of the present invention is disclosed in the accompanyingdrawings,

which form part of this specificatiun, in which llliGClliLIRCtGlS ofreference lndlcate like'parts throughout the views, and in" which vFigure 1 is a front elevation of rolls constructed and arranged inaccordance With the present inventionf-Fig. 2 is' a side elevat-ion ofone of the bearing'standards show-.

ing the roller shaft-s in section; Fig. is a vertical section taken onthe line 33 in Fig. l of thefu 'apenportion of one of said standards;and Fig-.4 cross section of the rolls taken on" the line 4P in Fig. 1.

The arrangement and operation of the rolls 5, 6 and 7 do not diiier verymaterially from most of the'rolls now in use on mills for similarpurposes. [The sugar-cane ism troduced'hetween the rolls 6 and7,which,,as

will'be noticed in. Fig. 4 of the drai'vi'ng, are

somewhat-separated, soasnot'to produce at I on the other, differ inproportion to their juxtaposition. The separating force exerted betweenthe rolls 5 and 7 "largely exceeds that exerted between the rolls 6-and7. Heretofore, in some mountings of theserolls the supportingstructurehas been designed to maintain thetriangular arrangementof' therolls by braces disposed equally to each side of the line centralbetween'the' axis of j Specification of Letters Patent Patentetl lhug'.2 1910; i V Application filed August-20 1909. Seria1No.51 3,8S4. I

"6 and 7 on "the one side, and rolls 5 and 7 I have braced these rollsso that I place the thrust rods 8, 9 with reference toa linecoinr:

cident with the resultant oftlie forces, tending to lift the IOllfiT.The thrust rod 91,

ext'end'through a hole 10 provided in standards 11in a positionparallel-withthe-line fl which would represent theresultant of the Fig.4 'I haVe added in' diagram-the line the line showing the lineof theresultant force or exertion received by the .roll 7 .to lift it from therolls 5 and 6. The line of force I have designated by the letters A, A,

while the central lineiof the thrust rod 9 I have designated by theletters B, B.

dual thrusts of the said rolls hand 6'. In I i The thrust rod 8 ispassed through a hole I 12 formed in the standard l1,"as shown in Fig. 8"of the drawing. The eXtent-ofthe thrust rod 8 is governed by theconvenience 0f,the' structure, it being arranged-sothah it is passedthrough a side cap 13 which holds in position the roll 5, and a top cap1-1;

which receives the thrust of the roll 7. The thrust rod 9 passesthrough'the cap let and is extendedthrongh the standard 11. and bedplate l5, or side rails thereof, bosses 161,6

being provided therefor. Both rods in each, of the standards are held inplace by tapered pins li -17 and 18 18, the same beingdriven throughsuitable perforations in the ends of the said rods.

By means of these tapered pins the rodsinay be-given a. final,

tightening at any 'rnomentby'th'e pinslibeing-"tapped to drivethem intothe, perforations provided in the saidrods, the topen ds'o f the saidpinsbeinglarger n dlmensi'ou than will. pass throughtheperforations'when the rods have :been properlyad; 'j'usted' to theirinitial position. The rods are primarilytightened by means of screwnuts19 -19." The thrust rods 8, 9 .areplaced.

in position after the side caps 13, 20 and the cap 14 have been placedin position.

The bearings for the rolls 5 and 6 are shown in Fig. 2 of the drawings.They consist primarily of a saddle bearing 21, which maybe constructedfrom brass,bronze or other suitable material. They are shaped to providea seat for the bearings 22-22 of the rolls, and to have a vertical wallproperly milled to form a'sliding seat on the inner face of the caps 13,20. The lower surface of the saddles 21 are slightly beveled to receivesliding wedge blocks 23. The saddles are held against the verticalsurface of the caps 13, 20 by means of screw bolts 2-;t24, which aresuitably threaded to engage the said saddles. The bolts Que-2% areextended through vertically elongated slots 25, 25 formed in the caps13, 20. Placed under the heads of the bolts 21-24 and to straddle theslots are suitablewashers 2(3L-(3.- The impinging strain exerted uponthe bolts 21t21 seats the saddles 2121 hard against the caps 13-20, and

prevents any chattering on the part of the said saddles.

lYhen it is desired to adjust the position of the rolls 5. (S withreference to the roll 7 this'is accomplislual by means of the blocks 23,'23, these being either withdrawn or extended under the said saddles.This adjustment of the blocks 23 is produced by means of screw bolts 27,27. The bolts 27, 27 are rotatably mounted in perforated lugs 282Sextended from the sides of the caps 13. 20. he bolts 27 are held in arotative position with reference to the lugs F -28 by any well known andsuitable constructi n. The bolts are suitably screwthreaded at the endopposite the head to engage a suitably threaded perforation formed inthe lugs 29-25) extended from the sides of the blocks 2? -23. Bymanipulating the bolts 2727, they being rotatably held in the lugs 2828,the blocks 23-23 are pro jccted or retracted with reference to the saidlugs or the caps 13, 20. \Yhen, now, it is desired to raise or lower therolls 5 or 6, the bolts 2%, 24 are slackened, permitting the saddles21i1 to rise and fall. The bolts 27 are rotated to project the blocks 23if the desire be to raise the saddles, until the desired position of therolls is attained. These positions having been attained, the operationupon the bolts 27 is suspended and the bolts 2l"21 are set up to drawthe saddles 21. 21 hard against the caps 13. -20.

The upper or master roll 7 is mounted in journals, the boxing of whichis split and. the upper portion formed by the moving brasses 30., 30.These brasses rise and lower on the guides 31-31. The tops of thebrasses are provided with a spherical head to form a ball and socketjoint in conjunction with thetrimming blocks 32-32 which extend throughthe lower wall of the caps 14-14:, to form the seats for the hydraulicscrew jacks used in connection with these rolls. It is by means of thesehydraulic jacks that the desired pressure is placed upon the roll 7 andby means of which the pressure at the opposite ends of the said rollequalized to accommodate the inequality of the strain during theprogress of the operation. The jacks consist of cup-like casings 33 ofsquare or circular inner dimension. The bottoms 3% of these casings restupon the trimming blocks 32. The casings 33 are adapted to extendthrough perforations 35 provided in the caps 11-1l, said perforationsbeing open-ended, so that the said casings or jacks may be slid intoposition within the caps 14 from either end of the said perforations.

Fitted snugly within the chamber of the casing 33 is a plunger 36,slidably fitted in the said chamber and adapted to be secured to a shoe3? which bears against the pads provided in the tops of the perforationsin the casings of 'the caps 14. Between the plunger 36 and shoe 3? isinserted a leather or other suitable packing 38 which is adapted to formbetween the side walls of the plunger and the casing a water-tightjoint. Extended from the side wall of the casing through a fitting 39fixedly attached to the said casing is a water inlet connected with asuitable accumulator or other water pressure regulating mechanism.

Vater pressure is admitted within the chamber of the casing 33 under theplunger 36, and the pressure exerted is proportionate to the square areaof the plunger 36. The water is admitted within the chamberfof the jackby means of the fitting 39. Theiitting 39 is provided to receive thepipe delivering the water from the accumulator.

When in operation and the feed of the rollers having been starte thewater pressure is turned on from the accumulator, and the plunger 36restingagainst the solid head of the caps let-J 1, it presses the casing33 upon the terminating block 32 and by means of the same upon thebrasses 30, and by means thereof upon the roller T. Vhen now in thecourse of the operation the accumulation of wane passes under the oneend of theroller 7 the excess strain thereof is accommodated by thewater in the jack at that end of the roller 7 receding from the saidjack and thus permitting the rise of the roller 7 at that end of thesame. while preserving the equalized pressure at bothends of the roller.These jacks are more or less subject to breakage or disrepair and it isto withdraw the same repeatedly and rapidly from the operative positionbetween the cap 14 and the termii'iating block 32. that l have providedthe open-ended recess in the said cap 1 1 and extend between the twostandards in line with the said recesses. the angular rails 40. Therails forn'i the supports for the jacks when the same are 4 drawnfromou't of the recesses The pipes which connect thesaid jacks and theaccumulator or water pressure may be in this position easily removedfrom the fitting 39. A new jack may be substituted or the old repairedand replaced in the recesses 35, and this with the minimum loss of time.The strain exerted upon the saddles 2121 and transferred thereby to thecaps 13 and 20, is received upon the thrust rods 41- l1 which areextended through holes provided in the standards 11 and provided withsuitable, threaded end extensions adapted to receive the nuts 4*2 l2.

It will be observed by reference to the drawings, particularly at Fig. 2thereof, that the thrust rods atlll are extended parallel them to thestandards 11-l1.

each to the other and to the line drawn between the axes of the rollers5 and (3, thus receiving in direct line the thrusting strain tending toseparate the same. All vertical strains on these rollers are receiveddirectly upon the blocks and transferred by The thrust rods 8 and 9which receive the thrust of the cap l l are arranged with directreference to the lifting strain exerted upon the roller 7 by both of therollers 5 and 6. It will be noticed particularly that the rod 9 iscarried through the standards 11 as close as convenient to the'bearingfor the roller 7 and is extended in a line parallel to the line of theresultant of the forces tending to separate the said roller 7 from therollers 5 and (3. The thrust rod 8 is extended designedly as shown, soas to pass through the cap 13, aiding thereby to support and maintainthe same in position. The operating strains received by the rollers 5,l3 and 7 are by the construction of the present housing each providedfor in such manner as to support the said strains upon the thrust rods8, 9 an tl ll, taking advantage of the tensile strength of the materialsfrom which these rods are constructed, and serving to relieve thecastings of the body of the standards and the caps.

Havin thus described 111 Y invention 1.

2. A sugar mill, comprising a pressureroller, yielding bearings for saidroller, expansible pressure members embodying a body-portion havingformed therein a chamher, a plunger slidably mounted in said chamber,suit-able ducts connecting said chamber with a fluid pressure systemadapthaving laterally extended chamberstoreceive said pressure members,andysup'por.ts--

extended laterally from said standards to receive said pressure memberswhen the same are withdrawn from said laterally extended chambers.

3. A sugar mill, comprising a pressure roller, yielding bearings forsaid roller, expansible pressure members embodying a body portion havingformed therein a suit able chamber, a plunger slidably mounted withinsaid chamber, suitable ducts for connecting the said chamber with thefluid pressure system adapted to extend said plunger .from said chamber,standards for said rollers having recesses to receive the said bearings,caps to fit said standards above said pressure roller and havinglaterally extended chambers to receive said pressure members, trimmingblocks to form rocking joints between said bearings and said expansiblemembers,- and supports extended laterally from said standardsto receivesaid pressure members when the same are withdrawn from said laterallyextended chambers.

at. A sugar mill, comprising a pressure 'roller, yielding bearings forsaid roller, ex-

pansible pressure members embodying a body portion having formed thereina suitable pressure chamber, a plunger slidably mounted in said chamberadapted to be extended in the line of movement of said roller, suitableducts for connecting the said chamber with a fluid pressure systemadapted to extend the said plunger from said chamber, standards for saidrollers having recesses to receive the said bearings, caps to fit saidstandards above said pressure roller and having a laterally extendedchamber to receive said expansible members, and rails extended betweensaid standards in line with the "said chambers and said caps to receiveand support the said expansible members when they are withdrawn fromsaid laterally extended chambers. i

5. A sugar mill, comprising expansible pressure members adapted to restbetween the standards of said housing and the pressure roller to exert adesigned pressure on said roller, and rails extended between thestandards of said housing in line with said members to support and guidethe same when withdrawn from or being introduced into operativeposition.

6. A sugar mill, comprising side standards for said housing adapted toreceive the pressure rollers in triangular arrangement, caps adapted torest upon said rollers to maintain them in propel bearing relation.expansible pressure members mounted between said rollers and said capsand adapted In testimony whereof I have signed my to exert lndependentpressure on the end name to this specification 1n the presence ofbearings of sand rollers, and supporting rails two sul'iscrlbingzWitnesses.

extended between the said standards adapt- \VILLIAM GARVIE HALL. ed tosupport and guide said expansible Witnesses: pressure members when beingintroduced 'HARVEY R. GRANT,

lnto or Withdrawn from operative position. ROB. ANDERSON.

